Weight-registering weighing-machine.



No. 763,203. PATENTED JUNE 21, 1904, H. POTTIN & L. M. DE LOGELIERE.WEIGHT REGISTERING WEIGHING MACHINE.

APPLICATION FILED MAR. 15, 1904.

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N0- 763,203. v PATENTED JUNE 21, 1904. H. POTTIN & L. M. DE LOGELIBRE.

WEIGHT REGISTERING WEIGHING MACHINE.

APPLICATION FILED MAR. 15, 1904.

no loom. SSHEBTS-SHEET 2.

No. 763,203. PATENTED JUNE 21, 1904. H. POTTIN & L. M. DE LOGELIERE.WEIGHT REGISTERING WEIGHING MACHINE- APPLICATION nun MAR, 16. 1904.

NO, MODEL. 3 SHEETS-SHEET 3.

UNITED STATES Patented June 21, 1904.

PATENT QrFicE.

HENRY POTTIN AND LFONCE MERLET DE LOGELIFRE, OF PARIS, FRANCE.

WEIGHT-REGISTERING WElGHlNG-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 763,203, dated June 21,190 1.

Application filed March 15, 1904.

T0 aZZ whom it may concern:

Be it known that we, HENRY POTTIN, residing at 100 St. Lazare street,and LiioNon Mnnnn'r :on LoeELIicRE, residing at 25 (Jaumartin street,Paris, in the Republic ofFrance, engineers, citizens of the Republic ofFrance, have invented certain new and useful Improvements inVVeight-Registering lVeighing-Machines,of which the follow ing is aspecification.

This invention relates to a weight-registering weighing-machine soconstructed as to supply a permanent control of the Weighings effected.

In this machine the movable scale or plate which receives the matter tobe weighed is so connectcd, by a suitable system of levers, with acursor moving in a rectilinear direction and with ancquipoisc member,such as a balance-weight or a-spring, that for each value of thematter-or load to be weighed the cursor takes up a determined position.The apparatus also comprises a mechanism for registering the weighingsintended to be operated after the weighing-machine has come into aposition of stable equilibrium. This mechanism comprises in principle,first, a stopping device moving in a helix the axis of which is parallelto the direction in which the cursor moves so as to meet the latter;secondly, means independent of the load to be weighed for moving thesaid stopping device, and, thirdly, a reckoning and registeringcontrivance in which wheels having figures on their rims are so arrangedas to revolve to a variable extent corresponding to the greater or lessamount of rotation which the said stopping device is to effect from itsinvariable starting-point up to the point where it meets the cursor, thesaid rotation being consequently in relation with the load to beweighed. The said wheels are also so arranged as to produce, either on acontinuous strip of paper or on a detached sheet or bulletin and eitherby perforation or printing, the reproduction of the figures on the saidwheels, thus supplying an automatic and certain control of theweighings.

An important feature of this contrivance consists in that theweighing-machine,

Serial No. 198,215. (No model.)

properly so called, is independent of registering mechanism and takes upits position of equipoise without moving any of the parts save its ownlevers and its cursor, which may be so arranged as to move without anysliding friction, so that the weighing-machine may be of the verygreatest sensibility. There is also the result that as the registeringmechanism is actuated independently of the load to be weighed it may beof very compact construction and made to fulfil a plurality of functionswithout in any way impairing either the sensibility or the precision ofthe apparatus. It may, for instance, involve, in combination with thedevice for reckoning the revolutions and with the device for registeringthe separate weighings, a device for showing the total of the weighings,&c.

The accompanying drawings show one form in which this invention can becarried out.

Figures 1 and 2 represent a front elevation and a side elevation,respectively, of the weighing-machine. Fig. 3 is a front elevation ofthe registering mechanism. Fig. 4 is aside elevation of the samemechanism. Fig. 5 is an elevation of a ratchet-wheel and pawl. Fig. 6 isa detail view of a connecting-rod.

On the main frame 1 of the weighing-machine is supported a lever 2,having a balanceweight 3 and which is fixed on a spindle 4:. The latteralso carries a wheel 5, connected by a ribbon 6 with the lever 7 of theweighing-machine, on which acts the load placed on the scale or plate 8.

The upper part of the lever 2 is connected by a link 9 with the lowerend of a lever 10, oscillating at 11 on the main frame 1, and the saidlink carries a finger or cursor 12, which is thus caused to travel in asubstantially rectilinear and horizontal path when the levers 2 and 10are oscillated.

Under the action of the balance-weight 3 these several parts occupy theposition shown in Figs. 1 and 2 when there is no load on the scale orplate 8. hen any load is placed on the plate. the lever 7 draws theribbon 6 downward and causes the wheel 5 to turn with the lever 2 inmoving the balance-weight 3 out of the vertical line passing through thespindle 4 until equilibrium is reached. The cursor 12 is thus moved toan extent which is all the greater as the load is all the heavier.

In order that the displacement of the cursor shall be proportional tothe load, the operative part of the wheel 5 is in the shape of a cam,which is suitably determined in respect to the lengths and inclinationsof the arms of the lever 2.

On the main frame 1 are also fixed two bearings 13 and 14, the former ofwhich is provided with an internally-screw-threaded sleeve for thepassage of an externally-screwthreaded rod 15, while the latter hearinghas a plain hole through which the said rod passes freely. On the rod 15is fixed a stop 16 in the form of a star having ten arms, the ends ofwhich describe equidistant spiral lines when the screw 15 turns andmoves forward in its fixed nut 60. The axis of these spiral lines-thatis to say, of the screw-is parallel to the path in which travels thecursor 12, so that the latter-shall be met by the arms of the star.

The rotation of the screw 15 is obtained by means of a pinion 17, keyedto and slidaloly mounted on a part of the screw 15, which is providedwith a groove 18; of a toothed Wheel 19, meshing with the pinion 17 andintegral with a pinion 20; of another toothed wheel, 21, meshing withthe pinion 20 and integral with a pinion 22; of a third idle wheel 61,provided with a pinion 62, and of a toothed segment 63, meshing with thepinion 62. A cam 69, fixed on a shaft 64, which can be turned from theoutside by means of crank-handle 65, allows of causing the toothedsegment 63 to oscillate in the direction shown by the arrow A in Fig. 4,thus acting on a roller 66, mounted on the said toothed segment. On theother hand, a spring 67, attached to the main frame, pulls on a lever 68on the toothed segment 63 and tends to turn the same in contrarydirection to that of the arrow A. On account of this arrangement whenthe cam shaft 69 is turned to theleft, so as to cause the toothedsegment to oscillate in the direction shown by the arrow, the spring 67is expanded, and at the same time the screw 15 is caused to move forwardtoward the left, Fig. 3, until it reaches its position of rest. Themechanism is then set or locked in this position of rest by means of acontrivance comprising the support 13, on which is mounted aretaining-pawl 70, which can be moved downward against the action of aspring 71 by means of a lever 72, fixed to a shaft 73, the latter beingprovided with a crank 74, the handle 7 5 of which projects through anopening 76 in the main frame or casing. The starwheel 16 carries a pin77, which at the endof its spiral movement toward the left meets thepawl 70 and moves the same downward against the action of the spring 71and then moves past the free end of the said pawl in thus preventing thestarwheel from moving tofive between Zero and ninety-five.

ward the right. The result is that the toothed segment 63 after havingbeen pushed by the cam 69 so as to bring the star-wheel 16 to the leftand to expand the spring 67 can be released by the said cam withoutallowing the star-wheel to turn backward and to return to the right. Theregistering mechanism is thus set and ready to operate for the purposeof registering a weighing. Then one has only to push the handle 75 inthe direction shown by the arrow, Fig. 2, to move the lever 72 downwardand to move the pawl 7 0 away from the pin 77, so that the releasedstar-wheel 16 turns and moves toward the right under the action of thespring 67 and through the medium of the hereinbefore-described gearing.This rotation continues until one of the arms of the star-wheel meetsthe cursor 12, which has been previously brought into a position ofequilibrium by the action of a load on the weighing-machine. Therotation of the screw, limited in this manner, corresponds to themovement of the cursor, and consequently to the weight of the load ormatter to be weighed. In the machine shown in the drawings the figuresindicating the weighings are reprod need by perforation in paperbulletins,which are inserted through a slit 78. (Shown in Fig. 1.) Forthat purpose three wheels 79 8O 81 are mounted on the shaft 82 of thewheel 19 and carry on their periphery figures formed by points arrangedin rows. The wheels 79 and 80 are rigidly fixed to the shaft 82 and turntogether. The former carries ten naughts and ten fives, arrangedalternatively, and thelatter carries two naughts, two ones, two twos,andso on up to two nines, these twenty figures being placed,respectively,opposite the twenty figures of the wheel 79, so as to formall the numerals from five to The wheel 81 is loose on the shaft 82 andcarries all the figuresnaught, one, two, and so on up to five or over,according to the weighing power of the machine. The wheel 81 is soactuated by the wheel 79 as to turn to the extent of a division at eachrevolution of the said wheel. For that purpose the wheel 7 9 carries adouble tooth 83, which at each revolution meshes with a cross of Maltaor a star-wheel 84 and causes the same to turn to the extent of ninetydegrees, and the wheel 81 is provided with teeth meshing with a pinion85, fixed on the same shaft as the wheel 84, so that at each quarter ofa revolution of the latter the pinion 85 causes the wheel 81 to turnforward to the extent of a division. On account of these arrangementsthe figures of the wheels 79 and 80 indicate the units and the tens,while the figures ofthe wheel 81 indicate the hundreds. Above the saidwheels 79 80 81 lies a roller 86, made of rubber and carried by arock-shaft 87. A lever 88, fixed to the said shaft, is capable of beingmoved against the action of a spring 89 by a cam 90, fixed on the shaft6 1, so as to press the rubber roller 86 onto the figure-carryingwheels. After the cam has passed the roller 86 is again moved away fromthe wheels by the action of the spring 89.

91 designates fingers arranged between the figure-carrying wheels andserving to support the sheet of paper inserted through the slit 78between the figure-carrying wheels and the roller 86. The said fingers,fixed to the shaft 87, are moved .down with the sheet by the roller, andthey then move upward in disengaging the said sheet from theperforating-points so that the sheet may be withdrawn.

The weighing-machine shown in the drawings also comprises a safetydevice comprising yielding plates 92, loaded with weighty matter 93 andfixed to a shaft 94:, which carries a pinion 95 in gear with the wheel19. The movable ends of the plates are attached to a disk 96, slidableon the shaft. hen the wheel 19 is put in rotation, the wheel 94: rotatesrapidly and the centrifugal force causes the plates or bands to moveaway from each other, so that the disk 96 moves and comes and rubsagainst a spring friction-pad 97, serving to moderate the speed ofrotation. At the same time the movement of the disk 96 allows a lever 98to oscillate under the action of a spring 99, so that one of its endscomes into the path of an arm 100, fixed to the shaft 6 1. The result isthat the shaft 64Ecan no longer be turned, and consequently that thereproduction of the figures of the weight is prevented so long as thecentrifugal force holds the disk 96 and the lever 98 displaced. The saidreproduction cannot take place before the train of gear-wheels andfigure-carrying wheels is brought to a stop.

101 designates a crank-handle serving both to stop and to permit themovement of the scale or plate of the weighing machine through themedium of a shaft 102 of a crank 103 and of a connecting-rod 104, ofwhich the lower end, in the shape of a hook, is engaged under the lever7 of the beam of the weighing-machine.

105 is an air-cylind er, in which freely moves a piston 106, the rod 107of which is pivoted to a lever 108, fixed on the spindle t. Theresistance of the air which passes between the piston and the wall ofthe cylinder weakens the oscillations of the balance when the beam 7 isreleased by moving the crank-handle 101 upward, so that the leverquickly reaches the position in which it is in equipoise. The upper end109 of the lever 2 is in the shape of an index and moves in front of agraduated index-plate.

The operation of the weight-registering weighing-machine is as follows:The crankhandle 101 being moved down, the star-wheel 16 and the cursor12 being in their initial positions toward the left, the substances tobe weighed are placed on the scale or plate of the weighing-machine andthe crank-handle 101 is moved up to render the scale or plate free tomove. Under the action of the said substances or load the beam 7 causesthe lever 2 to oscillate into a determined position of equipoise and theindex 109 indicates directly the weight of the substances on theindex-plate 110. At the same time the cursor 12 has been moved to theright to an extent which is proportional to the load. Then thecrank-handle is pushed to disengage the retaining-pawl 70 and to renderthe star-wheel 16 free to move. By the action of the spring 67,transmitted by the gear-wheels 63 62 61 22 21 20 19 17, the star-wheel16 is immediately put in rotation and moves forward toward the rightuntil one of its arms comes against the cursor 12. The figure-carryingwheels 79 have then turned to an extent which is proportional to themovement of the cursor that is, to the weight of the substances-and thisweight of the substances is expressed by the figures brought under theroller 86. A bulletin is then inserted through the slit 78 and thecrank-handle 65 is turned,

.which becomes possible as soon as the gearwheels have come to a stopand the clutchlever 98 is again in its position of rest. During thefirst half of a revolution of the crankhandle 65 the cam acts on thelever 88 and causes the roller 86 to move down onto the bulletin and thefigure-carrying wheels, so that the figures indicating the weight of theload are reproduced by perforation on the bulletin. Then the cam 90releases the lever 88 and the roller 86 moves up under the action of thespring 89, and at the same time the bulletin is disengaged from thepoints by the fingers 91. The bulletin may then be' withdrawn. Duringthesecond half of the revolution of the crank-handle 65 the cam 69 actson the toothed segment 63 and causes the same to oscillate against theaction of the spring 67, thus causing the gear-wheels and the star-wheel16 to turn in the opposite direction to that in which they movedpreviously until they reach their initial position, in which positionthey are set or locked by the engagement of the pin 77 on the pawl 70.The cam 69 then moves away from the roller 66 of the toothed segment 63,as shown in Fig. 1, so that the weighing-machine is again ready tooperate when the crank-handle 101 has been moved down and the substancesor load has been taken off the scale or plate.

It will be seen by Fig. 6 that the arms of the star-wheel 16 and alsothe cursor 12 have inclined contact-faces and ridges 51 52. The cursoris also provided with a heel 53. By these means the star-wheel comes toa dead stop against the cursor. The arms of the star-wheel and also thecursor are also provided w1th 1ncl1ned lateral faces 5 k 55,

&

It will be understood that the number ofthearms of the star-wheel may begreater or less, according to the pitch of the screw and the more orless approximative weighings it is desired to obtain. The said stoppingdevice may, if required, comprise a single tooth.

We claim- 1. A weight-registering weighing-machine, comprisinga cursorguided in astraight line, means for moving the said cursor to an extentproportional to the substances or load to be weighed, a stopping device,means for guiding the stopping device in a spiral line, meansindependent of and distinct from the load to be weighed for moving thesaid stopping device, and means for registering the extent of themovement of the aforesaid stopping device.

2. A weight-registering weighing-machine, comprising a scale or plate toreceive theload to be weighed, an oscillating lever connected to thesaid scale or plate, a balance-weight acting on the said lever, anotheroscillating lever, a link connecting the two levers together, a cursorfixed to the link at a determined point to move in substantially astraight line, a rotary screw, a fixed nut engaging the said screw, astopping device fixed to the screw and adapted to meet the cursor, meansindependent of and distinct from the load to be weighed to cause thescrew to turn, and means for registering the rotation of the screw.

3. A weight-registering weighing-machine comprising a cursor guided in astraight line, means for moving the said cursor to an extentproportional to the loads to be weighed, a stopping device, means forguiding the stopping device in a spiral line,said stopping device havingseveral stopping projections regularly spaced around the axis of theguiding means to meet the cursor at every point of its path, meansindependent of and distinct from the load to be weighed for moving thesaid stopping device, and means for registering the extent of themovement of the stopping device.

chine, a stopping device, means for guiding the stopping device in aspiral line, a train of gear-wheels to cause the said stopping device toturn, a toothed segment, a spring acting on the said toothed segment, ashaft actuated by hand and having a cam to cause the said toothedsegment to oscillate against the action of the spring, a pawl engagingthe stopping device, and means for moving the said pawl away from thestopping device.

5. In a weight-registering weighing-machine, a fixed nut, a screw, astopping device on the said screw, a train of gear-wheels to cause thesaid screw to turn, a toothed segment, a spring, a cam-shaft acting onthe toothed segment against the action of the said spring, a centrifugalregulator, a friction device actuated by the regulator to slacken therotation of the said gear wheels, and a lever actuated by the saidregulator to prevent the rotation of the cam-shaft.

6. In a weight-registering Weighing-machine, a stopping device, means.for guiding the stopping device in a spiral line, a train of gear-wheelsto cause the said stopping device to turn, figure-carrying wheelsconnected with the said gear-wheels, a presser-roller to press abulletin onto the figure carrying wheels, a spring to move the train ofgearwheels in one direction, a spring to move the presser-roller in onedirection, and a shaft having two cams one of which is adapted toactuate the presser-roller in the opposite direction to that imparted byits spring and the other of which is adapted to actuate the train ofgear-wheels in an opposite direction to that imparted by their spring. I

In testimony that we claim the foregoing as our invention we have signedour names in presence of two subscribing witnesses.

HENRY POTTIN. LEONOE MERLET DE LOGELIERE. Witnesses:

EDMOND BLETRY, MAURICE Roux.

4. In a weight-registering weighing-ma-

